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The Fe3O4-modified biochar reduces arsenic availability in soil and arsenic accumulation in indica rice (Oryza sativa L.)

文献类型：期刊论文

作者Yao, Yao4; Zhou, Hang3,4; Yan, Xiu-Lan2; Yang, Xiao2; Huang, Kang-Wen4; Liu, Juan4; Li, Li-Juan4; Zhang, Jing-Yi4; Gu, Jiao-Feng3,4; Zhou, Yaoyu1
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2021-01-06
期号28页码:18050
关键词Arsenic Fe3O4-modified biochar Rice Iron plaque Sustainable soil remediation
ISSN号0944-1344
DOI10.1007/s11356-020-11812-x
英文摘要Arsenic (As)-contaminated paddy soil could result in elevated levels of As in rice plants and sequentially harm human health. The Fe3O4-modified biochar (NBC-Fe) prepared by the coprecipitation method was applied in a pot experiment to investigate its effect on mobility and bioavailability of As in soil and to reduce As accumulation in rice tissues (brown rice, husks, spikelets, leaves, stems, and roots). Compared with non-application (CK), application of NBC-Fe significantly increased the cation exchange capacity (CEC), decreased As availability, and raised the As concentration of crystalline hydrous oxide-bound fraction in the soil. The addition of 0.05-1.6% (w/w) NBC-Fe significantly reduced the As concentrations in brown rice by 9.4-47.3%, which was lower than the level set by the National Food Safety Standards of China (0.2 mg/kg). The NBC-Fe treatment decreased As concentrations in iron plaque (DCB-As), and the DCB-As had the very significant correlations (P < 0.01) with the As concentrations in different rice tissues (brown rice, husks, spikelets, leaves, stems, and roots). The NBC-Fe immobilized As to decrease As availability in soil and increased the amount and thickness of iron plaque to sequester As on the surfaces of rice root. This study demonstrates that NBC-Fe is a promising soil amendment for the remediation of As-contaminated soil, therefore reducing As accumulation in rice plant and safety risks for rice consumption.
WOS关键词ZERO-VALENT IRON ; SIMULTANEOUS ALLEVIATION ; CONTAMINATED SOIL ; AQUEOUS-SOLUTION ; CADMIUM UPTAKE ; HEAVY-METALS ; PLAQUE ; WATER ; ADSORPTION ; CD
资助项目Natural Science Foundation of Hunan Province[2018JJ3881] ; Natural Science Foundation of Hunan Province[2018JJ3881] ; National Natural Science Foundation of China[41501344] ; National Natural Science Foundation of China[41501344] ; Science and Technology Program of Changsha[kq1901138] ; Science and Technology Program of Changsha[kq1901138]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000605568500025
出版者SPRINGER HEIDELBERG
资助机构Natural Science Foundation of Hunan Province ; National Natural Science Foundation of China ; Science and Technology Program of Changsha
源URL[http://ir.igsnrr.ac.cn/handle/311030/136779]  
专题中国科学院地理科学与资源研究所
作者单位1.Hunan Agr Univ, Int Joint Lab Hunan Agr Typ Pollut Restorat & Wat, Coll Resources & Environm, Changsha, Peoples R China
2.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Cent South Univ Forestry & Technol, Hunan Engn Lab Control Rice Qual & Safety, Changsha 410004, Peoples R China
4.Cent South Univ Forestry & Technol, Coll Environm Sci & Engn, Changsha 410004, Peoples R China
推荐引用方式
GB/T 7714		 Yao, Yao,Zhou, Hang,Yan, Xiu-Lan,et al. The Fe3O4-modified biochar reduces arsenic availability in soil and arsenic accumulation in indica rice (Oryza sativa L.)[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021(28):18050.
APA Yao, Yao.,Zhou, Hang.,Yan, Xiu-Lan.,Yang, Xiao.,Huang, Kang-Wen.,...&Liao, Bo-Han.(2021).The Fe3O4-modified biochar reduces arsenic availability in soil and arsenic accumulation in indica rice (Oryza sativa L.).ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH(28),18050.
MLA Yao, Yao,et al."The Fe3O4-modified biochar reduces arsenic availability in soil and arsenic accumulation in indica rice (Oryza sativa L.)".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH .28(2021):18050.

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来源：地理科学与资源研究所

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